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authorJohannes Berg <johannes@sipsolutions.net>2008-11-11 13:28:04 +0300
committerJohn W. Linville <linville@tuxdriver.com>2008-11-13 00:49:53 +0300
commitdb7fb86b0ca565cf3537401612581a8158025cc2 (patch)
tree67da233b8a1958328eb73d39ceecf6fc11c8b30a /net
parent8f7c41d4cec91cdbfa89b4a77d5a628938875366 (diff)
downloadlinux-db7fb86b0ca565cf3537401612581a8158025cc2.tar.xz
mac80211: fix notify_mac function
The ieee80211_notify_mac() function uses ieee80211_sta_req_auth() which in turn calls ieee80211_set_disassoc() which calls a few functions that need to be able to sleep, so ieee80211_notify_mac() cannot use RCU locking for the interface list and must use rtnl locking instead. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'net')
-rw-r--r--net/mac80211/mlme.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index 87665d7bb4f9..14d165f0df75 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -2570,14 +2570,14 @@ void ieee80211_notify_mac(struct ieee80211_hw *hw,
switch (notif_type) {
case IEEE80211_NOTIFY_RE_ASSOC:
- rcu_read_lock();
- list_for_each_entry_rcu(sdata, &local->interfaces, list) {
+ rtnl_lock();
+ list_for_each_entry(sdata, &local->interfaces, list) {
if (sdata->vif.type != NL80211_IFTYPE_STATION)
continue;
ieee80211_sta_req_auth(sdata, &sdata->u.sta);
}
- rcu_read_unlock();
+ rtnl_unlock();
break;
}
}